Edward a



v E. A. HILL.

Improvement in Zinc for Galvanic-Batteries.

N0. 114,005, PatentedApril25,187.

idrichiara EDWARD A. HILL, 0F CHICAGO, ILLINOIS.

Letters Patent No. 114.005, dated April 25'. 1871.

IMPROVEMENT I N ZINC FOR GLVANIC BATTERIES.

The Schedule referred to in. these Letters Patent and making part of the same.

I, EDWARD A. HILL, of Chicago, in the county of lCook and State of Illinois, have invented certain Improvements vin Zines for Galvanic Batteries, of which the following is a specification.

It is well known to those conversant in the art that the zincf of' a galvanc battery is the part which soonest wears away by action -of the chemicals, and that the other parts of a-battery of ordinary construction will outlast several of the zinc plates .or rings used.

The object of my invent-ion is to provide a batteryzinc which can be readily adapted to and'iitted into a battery, and which may be supplied as an article of manufacture to the trade for that purpose and It consists of an annular' zinc disk made of peculiar and novel form, as will be hereinafter presently explained, and having an aperture in which may be in.- serted a hanger by which to suspend it from the bat.- tery-cnp, all of which will more fully appear in the general description below given.

In the accompanying drawing, which, together' with the letters and figures of reference marked thereon, forms part of this specilication- Figure 1 is a top or plan view of my invention.

Figure 2 is a side elevation of same, partly in section, on the line :z: y of tig. l.

General Description..

from the upper edge of the aperture A to thelower outer edge ot' the zinc, as will be readily understood by reference. to fig. 2 of the drawing.

lhe purpose of this sloping configuration is to allow of the ready escape of' the gas-bubbles which arise in the chemical solution of the battery while in opera.- tion and stkeagainst the zine. The slope a. directs them to the aperture A, through which they readily escape.

This aperture A has another and more important function: it permits the introduction of a tube or magazine, through whichl the proper chemicals in a solid form may be placed in the battery with ease.

B is a projection cast upon the zinc near its edge.

This projection surrounds and serves to strengthen the attachment to an ordinary hanger,I C, for the purpose of attaching which hanger there is anaperture,

,0, entering the zinc through the projection B.

The zinc Z may be cast solid, with the projection B and sloping aperture A.

rlhe hole in t-he projection B for the attachment of the hanger may be either cast or drilled in; and the zinc being a soft metal the pin at the bottom of the hanger may be driven in tight enoughto hold the weight of the zinc; or a screw may be cast in said projection B, upon which the said hanger may be screwed.

Having thus described my invention,

What I claim, and desire to secure by Letters Patent, is

As an article'v of manufacture, the battery-zinc of' the form described and shown, substantially as specified.

EDWARD A. HILL.

Witnesses J. W. MUNDAY, L. L. Comms. 

